For people who grow vegetables, the mulch is essential. You can often see rows of mulch between the fields. If you look closely, you will find that the color of the mulch film is quite a lot. The most common ones should be black and white. So what are the different colors of the mulch? Let’s take a look at the following. .
The benefits of growing vegetables to cover the mulch
The mulch film is a plastic film used for mulching film covering. In almost all facilities, vegetable mulch is covered by the mulch film. Even if the mulch film is covered in the open field vegetable cultivation, there are many benefits of covering the mulch film. It can effectively increase the yield of crops, reduce the humidity in the greenhouse, and reduce the harm of vegetable pests and diseases.
The general public has basically accepted the fact that the benefits of growing vegetables cover the mulch film, but there are too many kinds of mulch films on the market. There are common common transparent mulch films, black mulch, silver black mulch, reflective mulch, etc. What is the specific use of various mulch films in the cultivation of vegetables, how should we choose in actual production, in order to avoid unnecessary economic losses caused by mis-selection misuse? Then look down.
Let's talk about the characteristics of various mulch films and how to use them.
1. Ordinary light-transmitting film
This kind of mulch is the most familiar and used most. The material is mainly made of polyethylene. The biggest advantage is to increase the ground temperature. After covering, the surface soil of about 5cm can be raised to a temperature of 5-6 °C. Due to the increase of ground temperature, it can be made. Fruits, melons, and legumes are at least 5-10 days longer than morning vegetables. In summer, the soil temperature under the membrane can reach 60 ° C, which can be used for soil disinfection. The disadvantage is that weeds are easy to weed and require proper weeding measures.
It is also because of the good warming effect of this film, which is mainly used for the production of early spring and spring eggplant vegetables and winter vegetable production. If it is used in other seasons, it will be unfavorable for root growth due to the high ground temperature.
The mulch also has the effect of protecting the soil and improving the soil structure. The reason is that after the mulch film is covered, the nitrogen volatilization in the soil is reduced, and it is protected from rain and water, so that the soil maintains a good loose state.
2, black mulch
In recent years, more and more black plastic film has been used in vegetable production, so everyone must understand the advantages and disadvantages of black plastic film. Don't use it wrong. Black mulch film is generally produced by LDPE. This black mulch film is thicker and has a large pulling force, and can be used at least two or three times. One of the main characteristics of black mulch is that the weeding effect is good. It is because this feature is used in the production of strawberries, watermelons and potatoes. During the growth of strawberries, a lot of weeds will grow, and weeding, weeding or pulling Grass is more unrealistic, so the best choice is to use black mulch.
Another characteristic of black mulch is that the soil temperature after covering is not obvious or even lowered by 2-3 °C. It is suitable for vegetables with low soil temperature requirements such as tomato, kidney bean and sweet pepper, or for vegetable production in summer and autumn high temperature season. According to the data, in the planting of summer and autumn watermelons, the use of black mulch film can increase yield by about 30% compared with ordinary light mulch film.
3, silver black film
The silver black mulch film is also called a reflective film. One side is silver and the other side is black. It is mainly made of PE. This kind of mulch is very functional and relatively expensive. It is mainly used for plots with many pests, especially locusts. When used, the silver side is facing up, the black side is facing down, and the silver surface is reflective to avoid aphids and reduce the spread of the virus. The black surface can lower the temperature by 4-6 °C.
Silver black mulch film is generally used in the production of summer vegetables. It provides heat-proof cultivation for vegetables and forms a good growth environment. It is called the umbrella for summer melon cultivation and is suitable for the production of lettuce, carrot, solanaceous and melon vegetables.
Therefore, in the cultivation of vegetables or other crops, we use different mulch films according to our own requirements. If the pests are more serious, it is better to use silver black mulch. The grass is particularly serious with black mulch, but it is only necessary to use ordinary mulch. The mulch film is also the cheapest.
The three types introduced by Xiaobian are the most common mulch films. Of course, there are other rare color mulch films. The small series is not introduced one by one. When choosing mulch film, the most important thing is to see what crops are planted, mulch. It can effectively control weeds, pests and diseases, so the use of mulch film when growing vegetables can be of great benefit.
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